48 lines
1.6 KiB
Python
48 lines
1.6 KiB
Python
# Copyright 2023-2024 SGLang Team
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# ==============================================================================
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import json
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import os
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from huggingface_hub import snapshot_download
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class LoRAConfig:
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def __init__(
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self,
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path: str,
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) -> None:
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self.path = path
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self.hf_config = self.get_lora_config()
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self.target_modules = self.hf_config["target_modules"]
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# TODO: Support more modules
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if any(module in self.target_modules for module in ["embed_tokens", "lm_head"]):
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raise ValueError("Not supported yet")
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self.r = self.hf_config["r"]
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self.lora_alpha = self.hf_config["lora_alpha"]
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def get_lora_config(self, dummy=False):
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if dummy:
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raise NotImplementedError()
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else:
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if not os.path.isdir(self.path):
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weights_dir = snapshot_download(self.path, allow_patterns=["*.json"])
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else:
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weights_dir = self.path
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config_name = "adapter_config.json"
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with open(os.path.join(weights_dir, config_name), "r") as f:
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return json.load(f)
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